Fatal error: Uncaught Error: Call to undefined method Magento\Downloadable\Model\Product\Type::getUsedProductCollection() in /home/ec2-user/releases/817/src/drbronner/module-catalog/Block/Product/Back.php:82 Stack trace: #0 /home/ec2-user/releases/817/magento/var/view_preprocessed/html/home/ec2-user/releases/817/src/drbronner/module-catalog/view/frontend/templates/product/view/back.phtml(1): Drbronner\Catalog\Block\Product\Back->getSimpleProducts() #1 /home/ec2-user/releases/817/magento/vendor/magento/framework/View/TemplateEngine/Php.php(59): include('/home/ec2-user/...') #2 /home/ec2-user/releases/817/magento/vendor/magento/framework/View/Element/Template.php(255): Magento\Framework\View\TemplateEngine\Php->render(Object(Drbronner\Catalog\Block\Product\Back\Interceptor), '/home/ec2-user/...', Array) #3 /home/ec2-user/releases/817/magento/vendor/magento/framework/View/Element/Template.php(279): Magento\Framework\View\Element\Template->fetchView('/home/ec2-user/...') #4 /home/ec2-user/releases/817/magento/vendor/magento/f in /home/ec2-user/releases/817/src/drbronner/module-catalog/Block/Product/Back.php on line 82